摘要
本文主要描述了永兴岛基准站绝对重力测量的实施过程，重力值的计算原理及参数改正，重力垂直梯度测定方法、计算模型及示意图，并将永兴岛基准站历次的测量结果进行了比对分析，结果表明从1999年～2010年该站的绝对重力值整体变化趋势是减小的，变化量为16．2×10^-8 m·s-2。
This paper introduced the implementation process of measuring at Yongxing Island base station, the determination of gravity and corrections, determination of the vertical gradient of gravity, formulas and schematic diagram. After the previous measurement results were compared, the result showed that the trend of the gravity value from 1999-2010 was decreasing, felled by 16.2×10^-8 m·s-2.
出处
《测绘科学》
CSCD
北大核心
2014年第2期11-13,36,共4页
Science of Surveying and Mapping
基金
国家自然科学基金(41174026)
关键词
绝对重力测量
FG5绝对重力仪
永兴岛基准站
重力垂直梯度
absolute gravity surveying
FG5 absolute gravimeter
Yongxing Island base station
vertical gradient of gravity
